| Has your V.W. engine ever leaked oil? |
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[ 1 ] |
| Yes, Still leaks :( |
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| Total Votes : 8 |
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| Author |
Message |
cocopuffsman
Samba Member
Joined: February 28, 2015
Posts: 76
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 Posted: Fri Aug 28, 2015 7:39 pm Post subject: Crank case Blow by? |
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i have a chenowth sandrail with an 1835cc vw beetle engine, unsure of the year/model but i have a porsche 356 carb with a breather.
lately i have been having a problem. i have an oil leak.
-i have tried tightening the 4 bolts on the oil plate on the backside of the engine
-i i tightened bottom oil drain plate.
Symptoms
-i always find oil on my skidplate and on/near the engine.
-my breather appears to be putting out alot of oil
Reason? Unknown
what do you think/know it is
i suspect its a piston ring or the crank case blow by...
heres a picture of the back just as an idea of what its in.
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https://youtu.be/bfYDA3-N0fg |
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OLD VW NUT
Samba Member
Joined: February 23, 2011
Posts: 2776
Location: High Desert of Washington 98823
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| Posted: Fri Aug 28, 2015 7:59 pm Post subject: Re: Crank case Blow by? |
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| cocopuffsman wrote: |
| -my breather appears to be putting out alot of oil |
Where do you vent the crankcase/heads at? If you have an oil breather hose connected to the L/H valve cover you might be pumping oil out of the L/H head/valve cover and up into the breather vent.
Check out these photos from Muffler Mike's website:
http://www.mufflermike.com/news2000.html
At 3,000 rpms this is the amount of oil thrown off by the crank which piles into the L/H head/valve cover:
At 5,000 rpms the head/valve cover is about full up - guess where the oil goes from there.
This is why you don't want to vent the L/H valve cover to any breather unless you also put a return hose from the valve cover to the sump. I've done this with my Ghia motor and also ventilated the top of both valve covers - the breather is dry. You'd need to add a sump to do this. The additional benefit with adding the drain hose is you will probably never have oil starvation at high rpms. A problem that is common with the ACVW motor even with a small add-on sump. A stock motor with no add-on sump only has 2 3/4 quarts of oil. A valve cover and head has enough volume to hold as much as half that oil in the left side during high rpms. The last thing I want to hear is my zero oil pressure buzzer going off during hard acceleration. And I haven't.
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71 Ghia Coupe - stock body - no rust! Powered by a 2110 W/Dual HPMX 44's - Rancho Pro Street Transaxle - A/C by Gilmore
Other car - 2013 VW Golf TDI |
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